Rails：是否有将逗号添加到大数的 rails 技巧？ - Rails: Is there a rails trick to adding commas to large numbers?

问题：

Is there a way to have rails print out a number with commas in it?有没有办法让 rails 打印出一个带有逗号的数字？

For example, if I have a number 54000000.34, I can run <%= number.function %>, which would print out "54,000,000.34"例如，如果我有一个数字 54000000.34，我可以运行 <%= number.function %>，它会打印出“54,000,000.34”

thanks!谢谢！

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解决方案：

参考一： https://en.stackoom.com/question/4WWh
参考二： https://stackoom.com/question/4WWh